Which hooks trigger prompts to save?

PreToolUse, PreCompact, PostToolUse, and SubagentStop.

How do siblings influence compactions?

Historian surfaces past plans, Oracle includes tool discoveries in key_insights, Gladiator highlights failure patterns, and Vigil checkpoints files via quicksave.

claude-praetorian

Scanned

npx machina-cli add skill Vvkmnn/claude-emporium/claude-praetorian --openclaw

Files (1)

SKILL.md

2.6 KB

Praetorian Plugin

Context guard. Saves and restores valuable context at the right moments — before planning, after research, when subagents complete.

Hooks

Hook	When	Action
PreToolUse(EnterPlanMode)	Before planning	Lists prior compactions, suggests restoring
PreCompact	Before context resets	Prompts to save decisions/insights/findings
PostToolUse(WebFetch/WebSearch)	After web research	Prompts to compact as `web_research`
SubagentStop	After subagent completes	Prompts to compact as `task_result`

Commands

Command	Description
`/compact-praetorian [type] [title]`	Save current context
`/restore-praetorian [query]`	Load previous context

Workflows

Compact (standalone)

Identify what's worth saving (research, decisions, patterns)
praetorian_compact(type, title, key_insights, refs)
Verify with praetorian_restore(title) to confirm it saved

Compact (with siblings)

If historian active: search_plans() to check if past context already covers this
If oracle active: include any tool discoveries in key_insights
praetorian_compact(type, title, key_insights, refs)
If vigil active: files are also checkpointed via quicksave

Restore (standalone)

praetorian_restore() — list recent compactions
praetorian_restore("query") — search for specific topic
Summarize findings for the current task

Restore (with siblings)

praetorian_restore("query") — load praetorian context
If historian active: search_conversations("query") for broader session history
If oracle active: search("query") for tools relevant to the restored context
Combine all sources into a unified briefing

Sibling Synergy

Sibling	Value	How
Historian	Past plans surface during planning compactions	`search_plans()` enriches pre-plan hook
Oracle	Tool discoveries included in compactions	Oracle results added to `key_insights`
Gladiator	Observations inform what to compact	Failure patterns highlight important context
Vigil	Files checkpointed alongside context	Quicksave protects files during compaction

Requires

claude mcp add praetorian -- npx claude-praetorian-mcp

Source

git clone https://github.com/Vvkmnn/claude-emporium/blob/main/plugins/claude-praetorian/skills/claude-praetorian/SKILL.md

View on GitHub

Overview

Praetorian preserves and restores valuable context across sessions by prompting compaction at key moments. It saves decisions, insights, and findings during planning, research, and after subagent completion, so critical context isn’t lost.

How This Skill Works

It hooks into core moments (PreToolUse, PreCompact, PostToolUse, SubagentStop) to prompt saving. Users save with /compact-praetorian and load with /restore-praetorian, while siblings Historian, Oracle, Gladiator, and Vigil enrich and checkpoint the context for richer briefings.

When to Use It

Before planning to surface prior compactions and restoration suggestions
After web research to compact web_research findings
When a subagent completes to save task results
During long-running tasks to checkpoint decisions and patterns
When cross-session memory is needed to maintain context across sessions

Quick Start

Step 1: Trigger Praetorian hooks at key moments (PreToolUse, PreCompact, PostToolUse, SubagentStop)
Step 2: Save context with /compact-praetorian [type] [title] and include key_insights and refs
Step 3: Load context later with /restore-praetorian [query] and review the unified briefing

Best Practices

Identify high-value insights, decisions, and patterns to save
Include clear references and source refs for each saved item
Leverage siblings (Historian, Oracle, Gladiator, Vigil) to enrich key_insights
Verify saved context with praetorian_restore to ensure completeness
Use Vigil quicksave where available to checkpoint files during compaction

Example Use Cases

Compact web_research after a WebFetch to preserve discoveries as web_research
Save planning context with Historian-enriched past plans during strategy work
Restore context after a subagent completes to resume the task with full briefing
Combine Gladiator failure patterns with current findings to highlight risks
Checkpoint critical decisions across multi-tool sessions for a unified briefing

Frequently Asked Questions

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